気丈な (translations)→ brave strong valiant
厚かましい (translations)→ demand immodest temerity thick-skinned
思いきった (translations)→ drastic major
思い切った (translations)→ desperate unprecedented
大それた (translations)→ ambitious dramatic heady over-venturesome soar
大胆な (translations)→ adventuresome brass-balls brazen challenging full-blown gamely impudent tender venturous
不謹慎な (translations)→ immoderate immoral sacrilegious ungracious